Visible-photoresponsive Nitrogen-Doped Mesoporous TiO2 Filmsfor Photoelectrochemical Cells

Bulletin of the Korean chemical society

Jae Hong Kim¹  Jae Young Bae¹  Tae Kwan Yun¹  Kwang Soon Ahn¹ 

关键词: Nitrogen-doped TiO2;    Visible-photoresponsive;    Photoelectrochemical cells;    Mesoporous electrodes;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Nitrogen-doped TiO2 (TiO2:N) nano-particles with a pure anatase crystalline structure were successfully synthesized through the hydrolysis of TiCl4 in an ammonia aqueous solution. The samples were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), N2-sorption, and UV-vis diffuse reflectance spectra (UV-vis DRS) techniques. The absorption edge of nitrogen-doped TiO2 shifted into the visible wavelength region. The photoelectrochemical (PEC) performances were investigated for the TiO2 mesoporous electrodes doped with different nitrogen concentrations. The TiO2:N electrodes exhibited much higher PEC responses compared to the pure TiO2 electrode because of the significantly enhanced visible-photoresponsibility of the TiO2:N electrodes.

【 授权许可】

Unknown